British Poultry Science最新文献_第3页

Avian pathogenic Escherichia coli alters complement gene expression in chicken erythrocytes. 禽致病性大肠杆菌改变鸡红细胞补体基因表达。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2025-01-06 DOI: 10.1080/00071668.2024.2435618

G L Liu, M L Qiao, H C Zhang, C H Xie, X Y Cao, J Zhou, J Yu, R H Nie, Z X Meng, R Q Song, Y Wang, J L Ren, Y J Zhao, J Q Sun, R W Fan, G J Shang, S Niu, W X Tian

{"title":"Avian pathogenic Escherichia coli alters complement gene expression in chicken erythrocytes.","authors":"G L Liu, M L Qiao, H C Zhang, C H Xie, X Y Cao, J Zhou, J Yu, R H Nie, Z X Meng, R Q Song, Y Wang, J L Ren, Y J Zhao, J Q Sun, R W Fan, G J Shang, S Niu, W X Tian","doi":"10.1080/00071668.2024.2435618","DOIUrl":"10.1080/00071668.2024.2435618","url":null,"abstract":"1. Avian Escherichia coli (E. coli) causes significant losses in livestock by inducing morbidity and mortality. Erythrocytes, the most abundant in blood, possess dual functions of oxygen transportation and immune regulation. In recent years, the interaction between erythrocytes and the complement system has gradually become a focal point of study. However, the transcription dynamics of the complement system in chicken erythrocytes post-E. coli invasion remains unclear.2. In this study, chicken erythrocytes and E. coli were co-cultured for 0.25-2 h to assess adhesion, analysed by indirect immunofluorescence (IIF) and scanning electron microscopy (SEM). Quantitative real-time PCR (qRT-PCR) examined differential expression of complement genes (CD93, C1q, C1s, C2, C3, C3AR1, C4, C4A, C5, C5AR1, C6, C7, C8G, CFI, MBL) in vitro using erythrocytes at 0.25-2 h and in vivo using chicks at 1, 3 and 7 d post-E. coli infection.3. E. coli adheres to chicken erythrocytes, as observed using IF and SEM. Gene expression analysis revealed early downregulation of C4, C4A, MBL and late upregulation of CD93, C1q, C1s, C3, C3AR1, C5AR1, C6, with C5, C7, C8G downregulated at 7 dpi. C2 expression varied at each time point.4. This study first showed E. coli adhering to erythrocytes, which activated complement genes rapidly. In vivo recovery from chickens with colibacillosis favours classical pathway activation, while lectin pathway may be inhibited, suggesting early immune down-regulation.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"307-314"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetic parameter estimation for traits related to the immune system against sheep red blood cells in Japanese quail. 日本鹌鹑对绵羊红细胞免疫系统相关性状的遗传参数估计

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-11-20 DOI: 10.1080/00071668.2024.2428302

Batol Asghari, Saeed Zerehdaran, Zahra Kheirkhah

{"title":"Genetic parameter estimation for traits related to the immune system against sheep red blood cells in Japanese quail.","authors":"Batol Asghari, Saeed Zerehdaran, Zahra Kheirkhah","doi":"10.1080/00071668.2024.2428302","DOIUrl":"10.1080/00071668.2024.2428302","url":null,"abstract":"1. Improving resistance against disease is important in the animal and poultry industry. Besides drugs and vaccines, genetic selection for improved immune systems may be an effective approach.2. Traits related to the immune system were studied in a 938 pedigreed Japanese quail population infected by sheep red blood cells (SRBC). Besides body weight at 35 d of age (BW35), weight of the gizzard (G), liver (Li), lungs (Lu), bursa (Bu), spleen (S), heart (H), and digestive track (D) and length of ileum (I) and caecum (C) were recorded. Total antibody (TA), mercaptoethanol-resistant (IgG), mercaptoethanol-sensitive titres (IgM), the number of monocyte (M), basophil (B) and eosinophil (E) and the ratio of heterophil to lymphocyte (H/L) were measured. Co-variance components were estimated via Gibbs sampling using GIBBS3F90 software. Five univariate animal models, including simple forms, were used for genetic parameter estimations, and the best model was determined by the deviance information criterion (DIC). Genetic and environmental correlations were estimated using a bivariate animal model.3. Direct heritability estimates for internal organs ranged from 0.06 (Lu) to 0.57 (G) and for immune system traits from 0.05 (IgM) to 0.17 (IgG). Negative genetic correlations were found between BW35 and internal organs (-0.22 to -0.80).4. Including one of the internal organs, such as the spleen, in the selection index improved the immune response in heavier birds. Additionally, because of the moderate heritability of IgG (0.17) and its effect on lasting immunity, selecting for higher IgG concentration may improve the resistance of Japanese quail against pathogens.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"299-306"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142675232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Innovative coating of turkey breast with nanoemulsion solution containing chia mucilage and sage essential oil by using vacuum impregnation. 采用真空浸渍的方法，将鼠尾草精油和奇亚胶纳米乳液溶液用于烤火鸡胸肉涂层。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2025-02-14 DOI: 10.1080/00071668.2024.2432929

E Sharefiabadi, H S Kavuşan, M Serdaroğlu

{"title":"Innovative coating of turkey breast with nanoemulsion solution containing chia mucilage and sage essential oil by using vacuum impregnation.","authors":"E Sharefiabadi, H S Kavuşan, M Serdaroğlu","doi":"10.1080/00071668.2024.2432929","DOIUrl":"10.1080/00071668.2024.2432929","url":null,"abstract":"1. In recent years, the coating of meat and related products has shown potential in extending shelf life. However, there are no studies on coating with nanoemulsion solutions using vacuum impregnation (VI) technique in meat matrices. This study evaluated the impact of nanoemulsion coating solutions, comprising chia mucilage and different concentrations of sage essential oil (SEO) on antioxidant properties and quality characteristics of turkey breast during storage using VI.2. Five coating solutions were developed, including coating with water (CV), chia mucilage (CMV), chia mucilage + 0.5% SEO (CMS1V), chia mucilage + 1% SEO (CMS2V) and chia mucilage + 1.5% SEO (CMS3V).3. The results indicated that increasing the SEO in nanoemulsion solutions significantly boosted antioxidant activity. Incorporating sage essential oil at a concentration of 1.5%, led to a notable reduction in peroxide value (PV) and thiobarbituric acid reactive substances (TBARS), which suggested reduced lipid oxidation. Additionally, the carbonyl and sulphhydryl content of turkey strips were significantly influenced by nanoemulsion coating solutions. Microbiological analysis revealed that nanoemulsions containing chia mucilage + SEO effectively reduced microbial load during storage, highlighting the antimicrobial properties of SEO. Furthermore, nanoemulsion coatings containing SEO inhibited the increase in total volatile basic nitrogen (TVB-N) values during storage, which extended the freshness of the meat.4. Overall, incorporating SEO into nanoemulsion coatings, alongside chia mucilage, maintained the quality attributes of turkey breast during storage, confirming the potential of nanoemulsion coatings in extending shelf life and preserving meat product quality.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"343-357"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Salmonella enterica Enteritidis and Heidelberg serotype-specific molecular detection in poultry samples by a rapid isothermal method. 用快速等温法对家禽样本中的肠炎沙门氏菌和海德堡血清型进行特异性分子检测。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-11-11 DOI: 10.1080/00071668.2024.2419623

C F D S Andrade, M N Souza, I I D S Dantas, A S K Fonseca, N Ikuta, D Kipper, V R Lunge

{"title":"Salmonella enterica Enteritidis and Heidelberg serotype-specific molecular detection in poultry samples by a rapid isothermal method.","authors":"C F D S Andrade, M N Souza, I I D S Dantas, A S K Fonseca, N Ikuta, D Kipper, V R Lunge","doi":"10.1080/00071668.2024.2419623","DOIUrl":"10.1080/00071668.2024.2419623","url":null,"abstract":"1. Loop-mediated isothermal amplification (LAMP) assays were developed to detect Salmonella enterica subspecies enterica serotypes Enteritidis and Heidelberg in poultry farms. These serotype-specific methods were evaluated in comparison with PCR in the analysis of different Salmonella spp. serotypes from a culture collection and poultry farm samples.2. The results demonstrated the specific amplification of the genetic targets safA in all S. Enteritidis (n = 10) and ACF69659 in all S. Heidelberg (n = 36) isolates from the culture collection. The remaining isolates from other Salmonella spp. serotypes (n = 84) and bacterial species (n = 8) were negative in both LAMP assays.3. The methods detected DNAs from S. Enteritidis and S. Heidelberg after a single-step pre-enrichment in buffered peptone water of the poultry samples, which agreed with previously developed PCR methods to detect these same two serotypes.4. In conclusion, LAMP assays were useful for rapid serotype-specific detection, being suitable for surveillance purposes in resource-limited environments such as poultry farms.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"367-373"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142615189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Does the distribution of light intensity within the barn impact broiler production and welfare? 鸡舍内的光照强度分布会影响肉鸡的生产和福利吗？

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-10-28 DOI: 10.1080/00071668.2024.2414460

T Shynkaruk, M Parsons, C A B Adler, C Goeree, K Long, K Schwean-Lardner

{"title":"Does the distribution of light intensity within the barn impact broiler production and welfare?","authors":"T Shynkaruk, M Parsons, C A B Adler, C Goeree, K Long, K Schwean-Lardner","doi":"10.1080/00071668.2024.2414460","DOIUrl":"10.1080/00071668.2024.2414460","url":null,"abstract":"1. The objective of this study was to determine if rearing broilers under variable light intensity (VLI) impacted their welfare or productivity.2. Ross 308 broilers (n = 7,256) were reared until 35 d of age and exposed to a uniform intensity of 10 lux (CON) or VLI with low intensity areas of 2-5 lux proximal to the walls and high intensity areas of 84-133 lux proximal to feeders.3. The data were analysed as a complete randomised design using an analysis of variance. Significance was declared when p ≤ 0.05.4. Applying VLI resulted in increased feed intake early in life but had no impact on body weight. Overall efficiency was improved in the CON treatment. Mortality diagnoses of skeletal problems were reduced under VLI. Treatment had no impact on footpad, hock or gait score, heterophil to lymphocyte ratio or melatonin concentration. Birds performed certain behaviours in specific locations within the room, independent of light intensity treatment.5. In conclusion, raising broilers under VLI had little impact on production or most welfare parameters assessed in this study. However, satisfying the bird's preference for different light intensities may improve welfare.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"281-289"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142495555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is oviposition time and oviposition interval associated with the deposition of cuticle on the hen's egg? 产卵时间和产卵间隔与鸡蛋表皮沉积有关吗？

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-11-29 DOI: 10.1080/00071668.2024.2425633

I C Dunn, P W Wilson, S Struthers, B Andersson, M Schmutz, L Hattendorf, H Brown

{"title":"Is oviposition time and oviposition interval associated with the deposition of cuticle on the hen's egg?","authors":"I C Dunn, P W Wilson, S Struthers, B Andersson, M Schmutz, L Hattendorf, H Brown","doi":"10.1080/00071668.2024.2425633","DOIUrl":"10.1080/00071668.2024.2425633","url":null,"abstract":"1. The cuticle acts as a barrier to prevent microbial penetration of the eggshell. The reduction in the oviposition interval with selection for egg production and the activity of clock genes in the oviduct led to testing the hypothesis that the interval between successive oviposition of eggs would be related to the deposition of the cuticle.2. There was oviposition interval and cuticle deposition data from 2140 eggs from 5 White Leghorn pure lines for over 7 d. The association between oviposition interval and cuticle deposition was assessed using a random slopes model for each hen.3. The time of oviposition was 05:37 h:m, about 2.5 h after lights on. Differences in oviposition time between lines were significant (P=0.025). Oviposition interval was slightly greater than 24 h at 24:06 h:min with significant differences between lines (P = 0.003). The variance was low and the maximum difference between lines for oviposition interval was only 11 min. Cuticle deposition was 28.87ΔE*ab with no differences between lines.4. The number of eggs a hen laid had an effect on the oviposition interval (P = 0.004), being shortest in hens laying seven eggs (24:01 h:m) than those laying six (24:08) or five eggs (24:14).5. There was a significant positive association between cuticle deposition and oviposition interval (P = 0.007) with a minimal increase of 0.79 ΔE*ab in cuticle deposition for each additional hour of oviposition interval. Heritability for cuticle deposition in this study was 0.48 but heritability was not measurable for oviposition interval and was not different from zero for oviposition time.6. Combined with a difference between the top and tail of the distribution for cuticle deposition, there was evidence for a significant but relatively small relationship between oviposition interval and deposition of cuticle on the egg. This may have contributed to some reduction in cuticle coverage as the oviposition interval approached 24 h, but it seems unlikely that it was a major component.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"413-418"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of using microalgae in poultry diets on the production and quality of meat and eggs: a review. 家禽饲粮中添加微藻对肉蛋生产和品质的影响

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2025-01-15 DOI: 10.1080/00071668.2024.2420330

O Madacussengua, A R Mendes, A M Almeida, M Lordelo

引用次数: 0

Temporal appearance of embryonic compartments and their sexual dimorphism in chicken. 鸡胚胎分区的时间性出现及其性别二态性。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-06-01 Epub Date: 2024-11-25 DOI: 10.1080/00071668.2024.2430634

P Horkaew, S Kupittayanant, P Kupittayanant

{"title":"Temporal appearance of embryonic compartments and their sexual dimorphism in chicken.","authors":"P Horkaew, S Kupittayanant, P Kupittayanant","doi":"10.1080/00071668.2024.2430634","DOIUrl":"10.1080/00071668.2024.2430634","url":null,"abstract":"1. Building on established understandings regarding hormonal and metabolic-driven processes of avian embryo's growth and development, this paper proposes a novel method, focusing on sex-related dimorphism. Such processes involve crucial activities, e.g. nutrition delivery, gas exchange and waste disposal. These are influenced by interactions among various structures within embryonic compartments, whose sequential patterns between males and females have been proven different.2. The embryonic compartments, having undergone physiological changes during d 8-12, were acquired from candled images. Their temporal appearance model was developed from a non-linear classifier. It was hypothesised that if there is any distinctive pattern associated with the embryonic compartments between embryo sexes, then the classifier can be trained to recognise the dimorphism.3. The results revealed that the proposed method could separate sexes in ovo with accuracy, recall, precision and balance accuracy of 94.71, 93.47, 95.92 and 94.72%, respectively. Error analyses found 4.82% false discovery and 9.78% false omission rates. The method was expected to enhance farming resource management and leads to better animal welfare.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"331-342"},"PeriodicalIF":1.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142709318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and validation of a high-density SNP chip tailored for genomic analysis in Indian backyard chickens. 用于印度后院鸡基因组分析的高密度SNP芯片的开发和验证。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-28 DOI: 10.1080/00071668.2025.2500343

R K Vijh, R Arora, U Sharma, M Raheja, P Kapoor, S Ahlawat, R Sharma

{"title":"Development and validation of a high-density SNP chip tailored for genomic analysis in Indian backyard chickens.","authors":"R K Vijh, R Arora, U Sharma, M Raheja, P Kapoor, S Ahlawat, R Sharma","doi":"10.1080/00071668.2025.2500343","DOIUrl":"https://doi.org/10.1080/00071668.2025.2500343","url":null,"abstract":"1. Indian backyard chicken breeds are well adapted to local climatic conditions and possess distinct genetic characteristics, necessitating a dedicated SNP chip to address their unique genetic diversity, breed identification and conservation needs. In this study, a high-density SNP chip, Axiom_Kukkut was developed with SNP markers derived from genomes of 16 indigenous chicken breeds, Red Jungle Fowl and White Leghorn.2. A total of 622,376 markers and an inter-marker distance of 1.9 kb, the Axiom_Kukkut provided a denser marker distribution compared to existing arrays. The chip was validated by genotyping a set of samples from diverse Indian chicken breeds. All the SNPs were used for validation. An average call rate of 99.92% and 91.28%, as high resolution polymorphic markers, demonstrated the high precision of the designed array.3. Population stratification analysis revealed high genetic diversity and distinct linkage disequilibrium patterns among various breeds. Multivariate principal component analysis confirmed the genetic distinctiveness of Red Jungle Fowl and Uttara, suggesting low genetic diversity due to geographic isolation or specific breeding practices.4. The customised SNP chip allows a multitude of possibilities, including applications in genome-wide association analysis, identification of selection signatures, population genetics and breed improvement programmes for Indian chicken. Continued refinement will expand its utility to include exotic and commercial breeds as well, enhancing its overall applicability across a wider range of chicken populations.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-9"},"PeriodicalIF":1.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing diet specification to maximise feed efficiency and production characteristics of the Redbro slow growing broiler chicken. 提高日粮规格，最大限度地提高红宝慢生长肉鸡的饲料效率和生产特性。

IF 1.6 3区农林科学

British Poultry Science Pub Date : 2025-05-28 DOI: 10.1080/00071668.2025.2506077

H M Scott-Cook, S C Mansbridge, A M Mackenzie, D G Yovchev, V R Pirgozliev

{"title":"Enhancing diet specification to maximise feed efficiency and production characteristics of the Redbro slow growing broiler chicken.","authors":"H M Scott-Cook, S C Mansbridge, A M Mackenzie, D G Yovchev, V R Pirgozliev","doi":"10.1080/00071668.2025.2506077","DOIUrl":"https://doi.org/10.1080/00071668.2025.2506077","url":null,"abstract":"1. This study assessed the impact of feeding a high nutrient specification (HS) diet, recommended for fast growing broilers and a low nutrient specification (LS) diet, recommended for slow growing broilers, on growth performance variables, including feed intake (FI), weight gain (WG) and feed conversion ratio (FCR) and production characteristics of fast growing Ross 308 broilers and slow growing Redbro broilers.2. As hatched, Ross 308 (n = 210) and Redbro broilers (n = 210) were randomly allocated to 28 floor pens, 14 pens for each genotype and fed experimental diets from 0 to 42 d of age over four feeding phases. Each diet was fed to seven pens of each genotype, following a randomised, blocked, factorial design.3. Growth performance variables were determined for each feeding phase. Excreta were collected during the last 4 d of the study to determine dietary N-corrected apparent metabolisable energy (AMEn) and nutrient retention coefficients. At 42 d of age, one bird per pen was humanely killed and samples were obtained for determination of meat quality variables, jejunal histomorphology and liver triglycerides.4. Feeding the HS diet increased FI (p < 0.05), WG (p < 0.001) and reduced FCR (p < 0.001) in both genotypes from 0 to 42 d compared to feeding the LS diet. Feeding the HS diet increased AMEn intake (p < 0.001). Diet did not affect breast meat quality, except for increasing drip loss in Ross 308 broilers (p < 0.05), nor did it affect breast myopathies, jejunal morphology, or liver function. Therefore, feeding the HS diet, which was formulated to meet the nutrient recommendations for Ross 308, can be a practical strategy to improve the feed efficiency of Redbro broilers.","PeriodicalId":9322,"journal":{"name":"British Poultry Science","volume":" ","pages":"1-11"},"PeriodicalIF":1.6,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144157034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0